Sleeper for permanent way.



Pmsend May 16, 191.6@

C. P. SANDBERG. -SLEEPER FOR'PERMANENT WAY. APPLICATION man lum/12. m5.

'bolted or riveted to the sleeper.

illtliiillt CHRISTEP. PETER SANDBEBG. 0F LONDON, ENGLAID.

SLEEPER FOR PERMANENT WAY.

Specification of Letters Patent.

Tatented Hay i6, 191W.

Application led July 12, 1915. Serial No. 39,397.

To all trimm t may concern y lie it known that l, Cnlns'rnn Pmi-:u SAND-isnno, a subject of the King of (ireat Britain, residing in London,England, have invented certain new and useful Improvements in Sleepersfor Permanent Way, of which the following is a specification.V

it has been proposed to make a steel railway or tramway sleeper withjaws for the rails in one piece with it. b v stamping or cutting tonguesof the .metal and turning these tongues upward and toward each other toform the jaws. A bar or plate. of steelof thickness suitable forconstituting the sleeper would not furnish tongues ot' sutiicientrigidity to constitute the jaws. It has therefore been proposed to niakcthe bar or plate of increased thickness at those places wherethe tonguesare to be cut, so that theI `latter may be of thicker cross section thanthe sleeper. It is ditiicult, however, to roll a bar o1* plate ofsection that is not uniforin throughout and the expense involved indoing so makes thc suggestion nnpraotlcable. lt has further beenproposed to make a steel sleeper with longitudinal ribs on the underside and to turn up the end of Suche sleeper to form a clip or jaw forthe rail, the other clip or jaw being By my invention the plate or barforming the sleeper-is provided with one oifmore relaitively deeplongitudinal ribs on that* face which is the under side in use andtongues are out or stamped out of the material of the sleeper and turnedupwardand toward one another, the position of the rib or ribs .on theface of the sleeper being such that when the tongues are turned up toform the jaws they have tins rib or thesl ribs on their outer 'surfacesand are thu" suthciently 'strong to hold the rail and to permit a key olany suitable kind being driven in between one 'jaw and the web 'of therail. This Y Inode of providing the` necessary substance inthe jaws hasthe advantage that Vthe sleeper is rolled of the same sectionthroughout, and the 'further advantage that the vrib or ribs serve toanchor the sleeper to the ballast, being osuicient depth for thepurpose. It also permits of the vsleeper being ot greater length thanthe distance between the jaws so that it is thoroughly supported on theballast" and can carry heavy loads. Moreoventhe rib strengthens thesleeper l and thus permits of a shallower trough section 'for thelatter, a result 01"" importance in consideration of the diliiculty inpacking modern ballast beneath a sleeper of deep trough section.

The invention is applicable to any form ot jaw. The tongues may be ofthe normal forni for a chair, that is to say oneI of the jaws may betui-ned inward to forni an abutment for the web ot' the rail as in thestandard chair, while the other together with the webct' the railconstitutes the key-way.

With hanged rails the jaws may both be straight or slightly curved, theabutment' being provided by a distance piece or key between the jaw oreach jaw and the web ot' the rail. Ur the jaws may be of the short fornifor clipping the flanges, with or without the insertion ot' a keybetween one or each jawand the flange.

The invention is of course applicable whetherthe jaw is constituted by asingle tongue orby two or more tongues turned up side by side.

The accompanying drawings illustrate two forms of jaws, Figure l being aside elevation and Fig, 2 a plan of one form and Figs. 3 and 4 likeviews respectively ot' the other form. F ig. 5 is a section on line 5-5of Fig. l drawn 'to an enlarged scale and shows in dotted lines the formof the sleeper afterthe rolling operation, before it is bent to thetrough shape shown in full lines. In'both forms the sleeper a has a deepmid-rib b (Fig. 5) on its under surface. I

.In Figs. '1 and 2 the jaws c are cut from i the rib b is on their outerfaces. The rail is held in place by a metal distance piece 0l and by akey d. In this case the necessary 'lateral inclination ot the surface ofthe rail is given by slightly inclining the sleeper in an upwarddirectionoutwardly fora certain portion of its length at the place Wherethe jaws are situated.

Inl Figs. 3 and l the tongue e is shaped to form an abutment for the webof the rail, .asin the normal chair. The tongue e embraces or tits loverthe foot of' the rail and.l terminates in an 11p-turned part which ispresented' against the' web and engages j the web with its face, suchengagement coinmencing as close to the bottom of the web as possible.,The lateral inclination is at the kind having jaws constituted tained byinelining the inetal between the jaws in the necessary dircctioinasshown.

Having thus described the nature et the said invention and the bestineans l know of carrying the same into practical effect, I clailnzl. Asteel railway-or tran'iway sleeper having jaws for holding the rails andhaving"f metal of the Sleeper with a pcrtien (it theY rib on then` outerfaces.

3. A steel railway er' tranurajf sleeper et by tongues 0f the metalturnczl upwardl)v ainl toward 'each ether. whcrcin the Sleeper cxtcndsat itsyends some flistancc' bejf'mnl the jaws and has a relatively dee;anfhoringr rib en its under surirarc which is continued up the entersurfaces of the jaws, for the purpose ofstrengthening the latter.

4. A steel railwayv or tramway sleeper having a relativelyY deepanchoring rib and jaws fer holding the rail turned up frein the metal ofthe sleeper and reinforced by ribs.

Mesem on their water faces in which 'the jaws previnlc ar chair whereinthe rail is held by the rmperatimi with one ci saic'l jaws of wedgeinterposed between it and the rail web.

A, steel railway cr trainwaj7 sleeper having? a relatively deepanchuring rib and jaws for holding .the rail turned up from the metal ofthe sleeper anni reinforced by ribs l an the eater faces, in which oneelf the jaws bent inward to directly engage with its tace the web of therail and the other jaw is turned upward to hold a wedgeengagecl betweensaid jaw and the web of the rail.

il. A steel railway er tramway sleeper haw ing a rclativrljT deepanchoring ribancl jaws lur balding the rail turned up from the metal-efthe sleeper and reinforced by ribs mi the cater faces in which one ofthe jaws bentinwarll to" embrace, without enijgag' ing. the tout at' therail and te directly er1- gagfe with its tace the web of the rail from.

.near-thc betteln npwa'rrl and the other jaw Y is turned upward to holda wedge engafrecl between said. jaw and the web ci' the ran.

ln lestnnenv whereof have smiled. my S name te this specification in thepresence of two sabscrllnng witnesses.

.Cl-lflllfE-- PETER SNDBERG. Vv'tnesses:

L11-1N Teixeira, H. RESIN.

